Sigh, another go at getting #line directives right.
-# line directives come in flavo[u]rs:
+ s/^#\s*line\s+(\d+)\s+\"\"$/\{\-# LINE \1 \"$file\" \-\}/;
+ s/^#\s*(\d+)\s+\"\"/\{\-# LINE \1 \"$file\" \-\}/;
- s/^#\s*line\s+(\d+)\s+(\"\")$//;
- s/^#\s*(\d+)\s+(\"\").*//; # these are a result of our using stdin in
- # the $(CPP) command line above.
+# line directives come in flavo[u]rs:
# s/^#\s*line\s+\d+$/\{\-# LINE \-\}/; IGNORE THIS ONE FOR NOW
s/^#\s*line\s+(\d+)\s+(\".+\")$/\{\-# LINE \1 \2 \-\}/;
# s/^#\s*line\s+\d+$/\{\-# LINE \-\}/; IGNORE THIS ONE FOR NOW
s/^#\s*line\s+(\d+)\s+(\".+\")$/\{\-# LINE \1 \2 \-\}/;